2018 Midterm Election coverage

Behind-the-scenes look at ABC News' election coverage.
2:01 | 11/05/18

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Transcript for 2018 Midterm Election coverage
And now we want to just take a quick look at the stakes for tomorrow in these midterm elections that obviously immigration being one of the key issues up for grabs. So more critical look at what's to look for as a night goes on and also what could tip the results may be one way or the other Tommy honest. Is here to break it all down for it's Tom. Hey everyone I'm Tom dumbest inside of our ABC news election studio this is where will be watching and analyzing all the results on election night. Every square inch of this brand new studio built to capture the excitement of what could be a historic night. Write your will have a powerhouse political team led by George Stephanopoulos watching everything that's coming and we'll have pollsters over there monitoring exit polls on this side we'll have our data crunchers and our political analysts telling us what all the numbers mean. And I'll be over here on the big board watching the races command telling you who's up who's down where the boat hasn't been counting yet and where it has been. This is the house right now as it stands he gets he Republicans are the party in power with all that red. And we've identified more than 100 key congressional races we believe the battle for the house will be fought in views congressional districts across the country. We've taken all the steel all these congressional districts and we've assembled them. On this chip board which is like Georgia's sixth at Kentucky six and Virginia Tech if there indeed. Is a blue wave will see it right cure on this board now president trump is not on the ballot but this election very much is a referendum on president trump. And as a data comes in we will be able to break it down with the help. Public three models so little eligible but to show you. So let's take a look at what's at stake in this election. All 435. House seats are up for grabs and Democrats need to pick up 23 to take control for the first time in eight years. In the senate the Democrats run defense they need to gain just two seats but they could lose even more. Across the country we will also be key to a close eye on 46 governors' races this election could be historic with the potential for massive voter turnout.

This transcript has been automatically generated and may not be 100% accurate.

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